Cover image for G-R-S Centralized traffic control : type K2, class M, coded system.
Title:
G-R-S Centralized traffic control : type K2, class M, coded system.
Author:
General Railway Signal Company.
Publication Information:
Rochester, N.Y. : General Railway Signal , 1955.
Physical Description:
166 pages : illustrations ; 23 cm.
General Note:
Fold. illus. at end.
Language:
English
Format :
Book

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DEWEY COLL. 625.16 20 Adult Non-Fiction Central Closed Stacks-Non circulating
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